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356 lines
10 KiB
356 lines
10 KiB
/* |
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* NXP Wireless LAN device driver: AP event handling |
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* |
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* Copyright 2011-2020 NXP |
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* |
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* This software file (the "File") is distributed by NXP |
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* under the terms of the GNU General Public License Version 2, June 1991 |
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* (the "License"). You may use, redistribute and/or modify this File in |
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* accordance with the terms and conditions of the License, a copy of which |
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* is available by writing to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
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* |
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
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* this warranty disclaimer. |
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*/ |
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#include "decl.h" |
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#include "main.h" |
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#include "11n.h" |
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#define MWIFIEX_BSS_START_EVT_FIX_SIZE 12 |
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static int mwifiex_check_uap_capabilities(struct mwifiex_private *priv, |
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struct sk_buff *event) |
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{ |
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int evt_len; |
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u8 *curr; |
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u16 tlv_len; |
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struct mwifiex_ie_types_data *tlv_hdr; |
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struct ieee_types_wmm_parameter *wmm_param_ie = NULL; |
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int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK; |
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priv->wmm_enabled = false; |
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skb_pull(event, MWIFIEX_BSS_START_EVT_FIX_SIZE); |
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evt_len = event->len; |
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curr = event->data; |
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mwifiex_dbg_dump(priv->adapter, EVT_D, "uap capabilities:", |
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event->data, event->len); |
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skb_push(event, MWIFIEX_BSS_START_EVT_FIX_SIZE); |
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while ((evt_len >= sizeof(tlv_hdr->header))) { |
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tlv_hdr = (struct mwifiex_ie_types_data *)curr; |
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tlv_len = le16_to_cpu(tlv_hdr->header.len); |
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if (evt_len < tlv_len + sizeof(tlv_hdr->header)) |
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break; |
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switch (le16_to_cpu(tlv_hdr->header.type)) { |
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case WLAN_EID_HT_CAPABILITY: |
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priv->ap_11n_enabled = true; |
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break; |
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case WLAN_EID_VHT_CAPABILITY: |
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priv->ap_11ac_enabled = true; |
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break; |
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case WLAN_EID_VENDOR_SPECIFIC: |
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/* Point the regular IEEE IE 2 bytes into the Marvell IE |
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* and setup the IEEE IE type and length byte fields |
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*/ |
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wmm_param_ie = (void *)(curr + 2); |
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wmm_param_ie->vend_hdr.len = (u8)tlv_len; |
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wmm_param_ie->vend_hdr.element_id = |
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WLAN_EID_VENDOR_SPECIFIC; |
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mwifiex_dbg(priv->adapter, EVENT, |
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"info: check uap capabilities:\t" |
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"wmm parameter set count: %d\n", |
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wmm_param_ie->qos_info_bitmap & mask); |
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mwifiex_wmm_setup_ac_downgrade(priv); |
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priv->wmm_enabled = true; |
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mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie); |
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break; |
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default: |
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break; |
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} |
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curr += (tlv_len + sizeof(tlv_hdr->header)); |
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evt_len -= (tlv_len + sizeof(tlv_hdr->header)); |
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} |
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return 0; |
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} |
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/* |
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* This function handles AP interface specific events generated by firmware. |
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* |
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* Event specific routines are called by this function based |
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* upon the generated event cause. |
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* |
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* |
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* Events supported for AP - |
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* - EVENT_UAP_STA_ASSOC |
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* - EVENT_UAP_STA_DEAUTH |
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* - EVENT_UAP_BSS_ACTIVE |
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* - EVENT_UAP_BSS_START |
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* - EVENT_UAP_BSS_IDLE |
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* - EVENT_UAP_MIC_COUNTERMEASURES: |
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*/ |
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int mwifiex_process_uap_event(struct mwifiex_private *priv) |
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{ |
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struct mwifiex_adapter *adapter = priv->adapter; |
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int len, i; |
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u32 eventcause = adapter->event_cause; |
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struct station_info *sinfo; |
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struct mwifiex_assoc_event *event; |
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struct mwifiex_sta_node *node; |
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u8 *deauth_mac; |
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struct host_cmd_ds_11n_batimeout *ba_timeout; |
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u16 ctrl; |
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switch (eventcause) { |
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case EVENT_UAP_STA_ASSOC: |
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sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); |
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if (!sinfo) |
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return -ENOMEM; |
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event = (struct mwifiex_assoc_event *) |
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(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); |
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if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { |
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len = -1; |
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if (ieee80211_is_assoc_req(event->frame_control)) |
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len = 0; |
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else if (ieee80211_is_reassoc_req(event->frame_control)) |
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/* There will be ETH_ALEN bytes of |
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* current_ap_addr before the re-assoc ies. |
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*/ |
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len = ETH_ALEN; |
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if (len != -1) { |
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sinfo->assoc_req_ies = &event->data[len]; |
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len = (u8 *)sinfo->assoc_req_ies - |
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(u8 *)&event->frame_control; |
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sinfo->assoc_req_ies_len = |
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le16_to_cpu(event->len) - (u16)len; |
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} |
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} |
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cfg80211_new_sta(priv->netdev, event->sta_addr, sinfo, |
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GFP_KERNEL); |
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node = mwifiex_add_sta_entry(priv, event->sta_addr); |
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if (!node) { |
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mwifiex_dbg(adapter, ERROR, |
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"could not create station entry!\n"); |
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kfree(sinfo); |
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return -1; |
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} |
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if (!priv->ap_11n_enabled) { |
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kfree(sinfo); |
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break; |
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} |
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mwifiex_set_sta_ht_cap(priv, sinfo->assoc_req_ies, |
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sinfo->assoc_req_ies_len, node); |
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for (i = 0; i < MAX_NUM_TID; i++) { |
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if (node->is_11n_enabled) |
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node->ampdu_sta[i] = |
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priv->aggr_prio_tbl[i].ampdu_user; |
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else |
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node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED; |
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} |
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memset(node->rx_seq, 0xff, sizeof(node->rx_seq)); |
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kfree(sinfo); |
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break; |
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case EVENT_UAP_STA_DEAUTH: |
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deauth_mac = adapter->event_body + |
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MWIFIEX_UAP_EVENT_EXTRA_HEADER; |
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cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL); |
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if (priv->ap_11n_enabled) { |
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mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac); |
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mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac); |
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} |
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mwifiex_wmm_del_peer_ra_list(priv, deauth_mac); |
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mwifiex_del_sta_entry(priv, deauth_mac); |
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break; |
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case EVENT_UAP_BSS_IDLE: |
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priv->media_connected = false; |
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priv->port_open = false; |
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mwifiex_clean_txrx(priv); |
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mwifiex_del_all_sta_list(priv); |
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break; |
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case EVENT_UAP_BSS_ACTIVE: |
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priv->media_connected = true; |
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priv->port_open = true; |
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break; |
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case EVENT_UAP_BSS_START: |
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mwifiex_dbg(adapter, EVENT, |
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"AP EVENT: event id: %#x\n", eventcause); |
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priv->port_open = false; |
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memcpy(priv->netdev->dev_addr, adapter->event_body + 2, |
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ETH_ALEN); |
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if (priv->hist_data) |
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mwifiex_hist_data_reset(priv); |
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mwifiex_check_uap_capabilities(priv, adapter->event_skb); |
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break; |
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case EVENT_UAP_MIC_COUNTERMEASURES: |
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/* For future development */ |
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mwifiex_dbg(adapter, EVENT, |
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"AP EVENT: event id: %#x\n", eventcause); |
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break; |
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case EVENT_AMSDU_AGGR_CTRL: |
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ctrl = get_unaligned_le16(adapter->event_body); |
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mwifiex_dbg(adapter, EVENT, |
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"event: AMSDU_AGGR_CTRL %d\n", ctrl); |
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if (priv->media_connected) { |
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adapter->tx_buf_size = |
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min_t(u16, adapter->curr_tx_buf_size, ctrl); |
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mwifiex_dbg(adapter, EVENT, |
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"event: tx_buf_size %d\n", |
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adapter->tx_buf_size); |
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} |
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break; |
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case EVENT_ADDBA: |
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mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n"); |
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if (priv->media_connected) |
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mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP, |
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HostCmd_ACT_GEN_SET, 0, |
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adapter->event_body, false); |
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break; |
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case EVENT_DELBA: |
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mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n"); |
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if (priv->media_connected) |
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mwifiex_11n_delete_ba_stream(priv, adapter->event_body); |
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break; |
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case EVENT_BA_STREAM_TIEMOUT: |
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mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n"); |
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if (priv->media_connected) { |
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ba_timeout = (void *)adapter->event_body; |
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mwifiex_11n_ba_stream_timeout(priv, ba_timeout); |
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} |
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break; |
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case EVENT_EXT_SCAN_REPORT: |
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mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n"); |
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if (adapter->ext_scan) |
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return mwifiex_handle_event_ext_scan_report(priv, |
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adapter->event_skb->data); |
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break; |
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case EVENT_TX_STATUS_REPORT: |
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mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n"); |
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mwifiex_parse_tx_status_event(priv, adapter->event_body); |
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break; |
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case EVENT_PS_SLEEP: |
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mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n"); |
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adapter->ps_state = PS_STATE_PRE_SLEEP; |
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mwifiex_check_ps_cond(adapter); |
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break; |
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case EVENT_PS_AWAKE: |
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mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n"); |
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if (!adapter->pps_uapsd_mode && |
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priv->media_connected && adapter->sleep_period.period) { |
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adapter->pps_uapsd_mode = true; |
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mwifiex_dbg(adapter, EVENT, |
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"event: PPS/UAPSD mode activated\n"); |
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} |
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adapter->tx_lock_flag = false; |
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if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) { |
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if (mwifiex_check_last_packet_indication(priv)) { |
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if (adapter->data_sent || |
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(adapter->if_ops.is_port_ready && |
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!adapter->if_ops.is_port_ready(priv))) { |
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adapter->ps_state = PS_STATE_AWAKE; |
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adapter->pm_wakeup_card_req = false; |
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adapter->pm_wakeup_fw_try = false; |
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break; |
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} |
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if (!mwifiex_send_null_packet |
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(priv, |
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MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | |
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MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) |
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adapter->ps_state = |
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PS_STATE_SLEEP; |
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return 0; |
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} |
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} |
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adapter->ps_state = PS_STATE_AWAKE; |
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adapter->pm_wakeup_card_req = false; |
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adapter->pm_wakeup_fw_try = false; |
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break; |
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case EVENT_CHANNEL_REPORT_RDY: |
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mwifiex_dbg(adapter, EVENT, "event: Channel Report\n"); |
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mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb); |
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break; |
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case EVENT_RADAR_DETECTED: |
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mwifiex_dbg(adapter, EVENT, "event: Radar detected\n"); |
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mwifiex_11h_handle_radar_detected(priv, adapter->event_skb); |
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break; |
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case EVENT_BT_COEX_WLAN_PARA_CHANGE: |
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mwifiex_dbg(adapter, EVENT, "event: BT coex wlan param update\n"); |
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mwifiex_bt_coex_wlan_param_update_event(priv, |
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adapter->event_skb); |
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break; |
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case EVENT_TX_DATA_PAUSE: |
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mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n"); |
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mwifiex_process_tx_pause_event(priv, adapter->event_skb); |
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break; |
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case EVENT_MULTI_CHAN_INFO: |
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mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n"); |
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mwifiex_process_multi_chan_event(priv, adapter->event_skb); |
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break; |
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case EVENT_RXBA_SYNC: |
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dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n"); |
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mwifiex_11n_rxba_sync_event(priv, adapter->event_body, |
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adapter->event_skb->len - |
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sizeof(eventcause)); |
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break; |
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case EVENT_REMAIN_ON_CHAN_EXPIRED: |
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mwifiex_dbg(adapter, EVENT, |
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"event: uap: Remain on channel expired\n"); |
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cfg80211_remain_on_channel_expired(&priv->wdev, |
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priv->roc_cfg.cookie, |
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&priv->roc_cfg.chan, |
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GFP_ATOMIC); |
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memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg)); |
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break; |
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default: |
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mwifiex_dbg(adapter, EVENT, |
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"event: unknown event id: %#x\n", eventcause); |
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break; |
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} |
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return 0; |
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} |
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/* This function deletes station entry from associated station list. |
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* Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream |
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* tables created for this station are deleted. |
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*/ |
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void mwifiex_uap_del_sta_data(struct mwifiex_private *priv, |
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struct mwifiex_sta_node *node) |
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{ |
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if (priv->ap_11n_enabled && node->is_11n_enabled) { |
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mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr); |
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mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr); |
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} |
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mwifiex_del_sta_entry(priv, node->mac_addr); |
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return; |
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}
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